Survivor since 2019
I had a lumpectomy with 21 radiation treatments. No chemo. HR+, HER2 negative, Stage 1, Grade 2. Surgeon felt mastectomy would be overkill. BUT, I have mild asthma, and the radiation caused irritation and inflammation in my lungs, exacerbating my asthma. I felt horrible. It took 2 months after radiation for everything to clear up, using a combination of prednisone and steroidal inhalers. If I had known this could have been a side effect, I might have opted for a mastectomy and avoided radiation all together.